Toxic air pollutants are poisonous substances in the air that come from natural sources (for example, radon gas coming up from the ground) or from manmade sources (for example, chemical compounds given off by factory smokestacks) and can harm the environment or your health.
Subsequently, Scorpius X-1 was discovered in 1962 by a team, under Riccardo Giacconi, who launched an Aerobee 150 sounding rocket carrying a highly sensitive soft X-ray detector designed by Frank Paolini.
Scorpius contains many bright stars , including Antares ( Î± Sco ) ,  rival of Mars ,  so named because of its distinct reddish hue ; Î²1 Sco ( Graffias or Acrab ) , a triple star ; Î´ Sco ( Dschubba ,  the forehead  ) ; Î¸ Sco ( Sargas , of unknown origin ) ; Î½ Sco ( Jabbah ) ; Î¾ Sco ( Girtab ,  the scorpion  ) ; Ï Sco ( Iclil ) ; Ï Sco ( Alniyat ...